Why is the maximum length of the client ID in MQTT protocol set to 23? The MQTT v3 1 spec limits Client identifiers to 23 characters: If the Client ID contains more than 23 characters, the server responds to the CONNECT message with a CONNACK return code 2: Identifier Rejected In v3 1 1 this was changed to mandate (MUST) supporting ID's between 1 and 23 characters, whilst allowing servers to accept longer ID's: The Server MAY allow ClientId’s that contain more
Problem in connecting esp32 to local MQTT broker I am having problem in connecting esp32 to local MQTT broker using the following micropython code from umqtt simple import MQTTClient import network import utime as time # Device Setup DEVICE_ID =
Node-red beginners issue. Connection failed to broker: mqtt: Probably not I have not installed anything extra apart from Node Red After your reply I tried to install HiveMQ (and upgrade my Java 8 to Java 11) I still didn´t manage to connect to the mqtt-broker on 127 0 0 1:1883 or 127 0 0 1:8080 How do I successfully install a broker in the simplest way? Thanks!
Spring Integrations. Sending messages to MQTT - Stack Overflow As part of the learning curve, I am trying to publish a message to Mosquitto MQTT using Spring Integrations I've set up a config (mostly from parts I found by googling, but the Listener part works
MAUI: How to publish a MQTT message from MAUI app? I am using below codes to connect to MQTT broker from my MAUI app: To connect I am using IAM user credentials with websocket connection private IMqttClient _mqttClient; public async Task ConnectA